Presonus PRM1 Precision Reference Microphone

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Main Features
  • Linear frequency response between 20 Hz and 20 kHz
  • Low noise, low distortion
  • Comes with a clip, foam windscreen, and hard case
  • Suitable for system analysis and measurement
  • -inch, pre-polarized electret-condenser capsule
  • Omnidirectional polar pattern
  • All-metal chassis
  • High-quality components and rugged construction

The PRM1 Precision Reference Microphone is a special type of condenser microphone that provides an accurate reproduction of a room's sound characteristics for use with audio-analysis tools such as real-time analyzers (RTAs) and spectrographs. Since it is a condenser mic, it requires phantom power.

The PRM1 employs a ¼” pre-polarized electret-condenser capsule and has an omnidirectional polar pattern, meaning it is equally sensitive in all directions. This allows the microphone to measure reflections, as well as direct signals, providing an accurate depiction of the room.

This mic can handle up to 132 dB SPL and exhibits linear (“flat”) frequency response between 20 Hz and 20 kHz, so it won’t color the sound.

The PRM1 has a narrow dynamic range, since it is intended to receive test frequencies, such as pink noise, at a fixed level. Therefore it is not recommended for recording purposes. But it’s the right mic for tuning a sound system to reproduce those tracks accurately in a room.

While the PRM1 can be used for a variety of measurement applications, such as MLSSA™, Spectrafoo™, and TEF™, it is especially recommended for use with PreSonus Virtual StudioLive™ software with Smaart Measurement Technology™ and PreSonus StudioLive 24.4.2 and StudioLive 16.4.2 digital mixers. With this combination, you can have a complete, powerful, and affordable, audio-analysis and correction system.

The PRM1 has an all-metal chassis and comes with a clip, foam windscreen, and hard case.

General Specifications
Type     Black electret condenser
Element     Pressure, FET preamplifier
Polar Pattern     Omnidirectional


Pin 2 output positive voltage (relative to Pin 3) when diaphragm receives positive pressure (moves inward)
Connector     3-pin XLR Male

Frequency Response     20 Hz to 20 kHz
Sensitivity (@ 1 kHz open-circuit voltage)     -37 dB/Pa (14 mV/Pa) 1 Pa=94 dB SPL
Rated Impedance     200Ω
Minimum Load Impedance     1,000Ω
EIN (A-weighted)     26 dB
Max. SPL (1 kΩ load)     132 dB SPL (THD ≤ 1%, 1 kHz)
Dynamic Range (1 kΩ load)     106 dB
S/N Ratio     70 dB

Phantom Power     9-52V
Current Consumption     2 mA

Length     7.56” (192 mm)
Width     0.83” (21 mm)
Weight     5.3 oz (150g)
Finish     Metal, matte black
Environmental Conditions     10-50˚ C, humidity 0-95%

NOTE: As a commitment to constant improvement, PreSonus Audio Electronics, Inc., reserves the right to change any specification stated herein at any time, without notification.

UPC: 673454001918
Presonus PRM1 Precision Reference Microphone
  • Mic clip
  • Foam windscreen
  • Hard case
Phone: (03) 9543 8885 Fax: (03) 9543 8865
Address: Unit 12, 25 Howleys Road, Notting Hill Vic 3168
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